TY - GEN
T1 - Digital quadrature demodulate design for electrical impedance tomography
AU - Wu, You
AU - Zhao, Dechun
AU - Sha, Hong
AU - Gan, Yu
PY - 2009
Y1 - 2009
N2 - A quadrature demodulation design method for EIT is proposed in this paper. Firstly, a quadrature demodulation circuit model is set up. Model simulation is done to test the correctness of the demodulation circuit model. The next step is to transform the circuit model to HDL files with Signal Compile. And then Modelsim is used to make functional simulation for the HDL files. Then synthesis, FPGA configurations and hardware implementation are done to finish the dumodulation design. The results show that the quadrature demodulation can effectively detect the real and imaginary part of the measured complex impedance. With measurement errors into consideration, it meets measurement requirement in EIT and can provide necessary technical support for full information complex impedance measurement.
AB - A quadrature demodulation design method for EIT is proposed in this paper. Firstly, a quadrature demodulation circuit model is set up. Model simulation is done to test the correctness of the demodulation circuit model. The next step is to transform the circuit model to HDL files with Signal Compile. And then Modelsim is used to make functional simulation for the HDL files. Then synthesis, FPGA configurations and hardware implementation are done to finish the dumodulation design. The results show that the quadrature demodulation can effectively detect the real and imaginary part of the measured complex impedance. With measurement errors into consideration, it meets measurement requirement in EIT and can provide necessary technical support for full information complex impedance measurement.
KW - Digital quadrature demodulation
KW - DSP builder
KW - Electrical impedance tomography
KW - FPGA
KW - Real part and imaginary part
UR - https://www.scopus.com/pages/publications/77749335710
UR - https://www.scopus.com/pages/publications/77749335710#tab=citedBy
U2 - 10.1109/FBIE.2009.5405835
DO - 10.1109/FBIE.2009.5405835
M3 - Conference contribution
AN - SCOPUS:77749335710
SN - 9781424446919
T3 - FBIE 2009 - 2009 International Conference on Future BioMedical Information Engineering
SP - 406
EP - 408
BT - FBIE 2009 - 2009 International Conference on Future BioMedical Information Engineering
T2 - 2009 International Conference on Future BioMedical Information Engineering, FBIE 2009
Y2 - 13 December 2009 through 14 December 2009
ER -